/*
 * ****************************************************************************
 * Copyright (c) 2013, Daniel Murphy All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification, are permitted
 * provided that the following conditions are met:
 * * Redistributions of source code must retain the above copyright notice, this list of conditions
 *   and the following disclaimer.
 * * Redistributions in binary form must reproduce the above copyright notice, this list of
 *   conditions and the following disclaimer in the documentation and/or other materials provided
 *   with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
 * WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * ****************************************************************************
 */
package org.jbox2d.dynamics.joints

import org.jbox2d.dynamics.Body

/**
 * Definition for a [ConstantVolumeJoint], which connects a group a bodies together so they maintain
 * a constant volume within them.
 */
class ConstantVolumeJointDef : JointDef() {
  var frequencyHz = 0.0f
  var dampingRatio = 0.0f
  var bodies = mutableListOf<Body>()
  var joints: MutableList<DistanceJoint>? = null
  override var type = JointType.CONSTANT_VOLUME
  override var collideConnected = false

  /**
   * Adds a body to the group
   *
   * @param argBody
   */
  fun addBody(argBody: Body) {
    bodies.add(argBody)
    if (bodies.size == 1) {
      bodyA = argBody
    }
    if (bodies.size == 2) {
      bodyB = argBody
    }
  }

  /** Adds a body and the pre-made distance joint. Should only be used for deserialization. */
  fun addBodyAndJoint(argBody: Body, argJoint: DistanceJoint) {
    addBody(argBody)
    if (joints == null) {
      joints = mutableListOf()
    }
    joints!!.add(argJoint)
  }
}
